Improved refrigerator and cooling apparatus



waited (Staten ALFRED B. ELY, QF NEWTON, MASSACHUSETTS.

Letters Patent N 102,3

82, dated April 26, 1870.

IMPROVED REFRIGERATOR AND COOLING APPARATUS.

The Schedule referred to in these Letters Patent and making par! ofltnesame;

Be it known that L ALFRED B. ELY, of Newton, Middlesex county, and.State of Massachusetts, have invented au Improved Ventilating andCooling Apparatus, of which the following, with the drawings, is a fulldescription.

Figure 1 is a section of a refrigerator to which my invention may beadapted, showing the ice-pan and chamber, and the `ventilating-pipesinto and out of it.

Figure 2 is a section of' the Ventilating-pipes when in juxtaposition. A

A is a room or chamber, of which F fis the ceiling.

B is, in a refrigerator, a chamber over the room A.

C is a pipe, leading upward from the room A, and projecting into thechamber B.

D is a pipe leading downward from the chamberB, and projecting into theroom A.

E is an ice-pan on the floor of chamber B.

For more 'perfect circulation, the lower end of Cl should be flush withthe ceiling F of room A, and the .upper end of D flush with the door ofchamber B, es-

pecially when used for cooling purposes; but the pipes may be arrangedas in fig. 2, extending each way for ventilation, except that the uppero rilice of C shouldv extend above that of lD, and the lower orifice ofD should extend below that of C. Y

The object of this is apparent. Dv being extended below the surface ofthe ceiling or below C, the cold air will fall through D without 'anyinterruption from the upward'pressure of the warm air toward the sameorifice, and C being extended above the door or above D, the warm airwill lise through C, without any interruption from the downward pressureof the cold `air toward the same orifice.

In the case of the refrigerator, the air in B being cooled by the ice inE, will fall through D into A, and the warmer air in A will rise throughC into B, and thus a substantiallypei'fect equilibrium will be soonestablished, and the temperature of' A willbe equal- 'Din relation' toeach other, and also in relation to the room A.

The number-of pipes maybe increased, and the coolingllnaterialdifferently placed, without changing the principle of the invention. 1

- What I olaim'isi 1. The combination of pipes C and D, when constructedand arranged in relation to each other, and

to room A, substantially as shown and described.

2. The combination of pipes C and D and a receptacle for coolingmaterial, when constructed and arranged in relation to each other and toroom A, substantially as described. l

ALFRED B. ELY. 'Witnesses:

J. PL JACOBS,

N. T. ELLswoRTH.

